Revision on living things and living systems

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Across
  1. 3. Plants have _______________ to trap sunlight to make food.
  2. 5. Plants which produce flowers are called _____________ plants.
  3. 7. The leaf has ________________, which are tiny openings that help the plant take in and give out air.
  4. 8. Both _____________ and bacteria do not make their own food
  5. 10. The young of living things can ________________ into adults.
  6. 12. There is a great _____________ of things around us.
  7. 15. Bacteria can only be seen clearly under a __________________.
  8. 16. Mosquitoes have three body parts, three pairs of legs and a pair of ___________________.
  9. 17. Non-flowering plants reproduce by __________________.
  10. 18. Plants which do not produce flowers are called ________________ plants.
  11. 19. The ____________ anchor the plant firmly to the ground.
Down
  1. 1. Parrot and ostrich are examples of birds. They are covered with ______________.
  2. 2. Frog and salamander are examples of ___________________.
  3. 4. _____________________ are very small living things that cannot be seen with our naked eyes.
  4. 6. The roots absorb ____________ and mineral salts.
  5. 9. The ___________ supports the plant so that the plant can remain upright to get more sunlight to make food.
  6. 11. Living things can _______________ to changes around them.
  7. 13. Ants and butterfly are examples of ____________________.
  8. 14. Animals _________________ so that they will not become extinct and will continue to exist.
  9. 17. Flowering plants reproduce by ________________.